But I make other things too, some need 1 cup of milk and some 1/2 cup of milk and one needs 3 Tablespoons of milk. In the past I have tried freezing milk in zip lock bags but they are hard to get the milk out of and some of the fat sticks to the bag. I liked the containers because I pop it out before it starts to melt and it comes out pretty clean.
But I was starting to have way too many small containers of 1 cup and 1/2 cup and didn't have any Tablespoons so I thought of my ice cub trays.
Each cube is 2 Tablespoons. So that means:
1 1/2 cubes = 3 Tablespoons
8 cubes = 1/2 cup
16 cubes = 1 cup
This gives me a much more manageable system for saving milk to use in smaller quantities. I cover the cubes with wrap and stack them on each other and freeze.
After they are frozen I pop them out and put them in a plastic bag and label and date it. (Very important if you are cube freezing other things. You'd be surprised how similar things look!!)
I use the ice cub trays to freeze broth, tomato sauce, plain yogurt for starter, and milk to be used in small quantities in recipes.